usr/src/etc/networks

#       @(#)networks    5.1 (Berkeley) %G%
#
# Your Local Networks Database
#
your-net        127                             # your comment
your-netmask    255.255.255                     # subnet mask for your-net

#
# Your subnets
#
subnet1         127.0.1         alias1          # comment 1
subnet2         127.0.2         alias2          # comment 2

#
# Internet networks (from nic.ddn.mil)
#